Part 1. If you replace something "like for like", you don't have to follow new codes. For example, I can replace a broken outlet in an old without ground with another outlet that is the same - no ground. Likewise, I can replace a broken outlet without TR if the broken one has no TR. For that matter, I can replace it if I just want to change the color. Correct?

Part 2. I'm replacing an outlet, but it's not exactly "like for like". I'm replacing an outlet with a different type of outlet (one that has USB). This would be similar to replacing a light switch with a dimmer switch. I'm not changing any wiring or anything. This falls into a different category than 1?

If you replace it, strictly by the NEC, it has to meet current code. Take a kitchen counter receptacle. If you replace the receptacle to change from ivory to white, it must be a GFI.

I'd go with this for sure. last time I had an electrician out to replace some receptacles he said the exact same thing. Even though it was just a swap for a receptacle he had to put in tr since it was current code. not really a big deal either imo since they are readily accessible and the cost difference is pretty negligible, surprisingly.

not really a big deal either imo since they are readily accessible and the cost difference is pretty negligible, surprisingly.

Well, in this case the difference is $7, which adds up if you put in a bunch of them.

Anyway, since you brought up the idea of accessibility, why do you think it is that the big box stores stock so much stuff that is out of code? I don't get it. You'd think most of their outlets would be TR, but they're not - not even close.

Well, in this case the difference is $7, which adds up if you put in a bunch of them.

Anyway, since you brought up the idea of accessibility, why do you think it is that the big box stores stock so much stuff that is out of code? I don't get it. You'd think most of their outlets would be TR, but they're not - not even close.

because its not big box's responsibility to make you comply Also, have you checked for bulk packs of the tr? should be able to save a lot more that way. The cost difference for me was only like $3.

Well, in this case the difference is $7, which adds up if you put in a bunch of them.

Anyway, since you brought up the idea of accessibility, why do you think it is that the big box stores stock so much stuff that is out of code? I don't get it. You'd think most of their outlets would be TR, but they're not - not even close.

Because tamper resistant are only required in a dwelling. Many commercial buildings work shops and garages don't require them.

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With Electricity there is the right way to do it and the dead way. Just because it works does not make it safe.

I think you just answered your own question. Since most of their customers are diy homeowners who probably have no clue or interest in meeting a current code, they go straight for an exact matching replacement that they can easily replace. Big box stores spend a LOT of time knowing what their customers want.

I think you just answered your own question. Since most of their customers are diy homeowners who probably have no clue or interest in meeting a current code, they go straight for an exact matching replacement that they can easily replace. Big box stores spend a LOT of time knowing what their customers want.

Before I answer, I just wanted to say that while some Home Depot and Lowes associates are clueless, some are extremely knowledgeable. They certainly have some people who know what they're selling and what the codes are.

So my point is, by
- stocking more code compliant parts and putting them front/center
- by posting materials showing how to make common repairs (like they do with many other things)
- by having associates who know that TR fixtures should be installed

The stores would make a lot more money. TR fixtures are certainly no harder to install. The stores should be pushing them. I don't understand it.